42102343 has 2 divisors, whose sum is σ = 42102344. Its totient is φ = 42102342.

The previous prime is 42102317. The next prime is 42102349. The reversal of 42102343 is 34320124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42102343 - 2⁵ = 42102311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42102343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42102349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051171 + 21051172.

It is an arithmetic number, because the mean of its divisors is an integer number (21051172).

Almost surely, 2^42102343 is an apocalyptic number.

42102343 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102343 is an equidigital number, since it uses as much as digits as its factorization.

42102343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42102343 is about 6488.6318280513. The cubic root of 42102343 is about 347.8847743548.

Adding to 42102343 its reverse (34320124), we get a palindrome (76422467).

The spelling of 42102343 in words is "forty-two million, one hundred two thousand, three hundred forty-three".